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Finding the Fourth Proportional to 8,940.38, 12,333.47 and 6,289.25

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Solution

The fourth proportional to 8,940.38, 12,333.47 and 6,289.25 is: 8,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.38 : 12,333.47 = 6,289.25 : x
  2. Step 2: Convert to fraction form
    8,940.38/12,333.47 = 6,289.25/x
  3. Step 3: Cross multiply
    8,940.38x = 12,333.47 × 6,289.25
  4. Step 4: Simplify right side
    8,940.38x = 77,568,183.08
  5. Step 5: Solve for x
    x = 77,568,183.08/8,940.38
  6. Step 6: Final answer
    x = 8,676.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.